Plow.



I W. W. CAMERON.

PLOW.

APPLICATION FILED SEPT. 17, 1913.

Patented Jan. 12, 1915.

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WILLIAM W. CAMERON, OF LA CROSSE, WISCONSIN, ASSIGNOR TO LA CROSSE PLOW COMPANY, OF LA CROSSE, WISCONSIN, A CORPORATION OF WISCONSIN.

PLOW.

Specification of Letters Patent.

Patented Jan. 12, 1915.

Application filed September 17, 1913. Serial No. 790,336.

To allwiwm it may concern:

Be it known that I, WILLIAM TV. CAM- ERON, a resident of La Crosse, in the county of La Crosse and State of Wisconsin, have invented certain new and useful Improvements in Plows, of which the following is a full, clear, and exact description.

The invention relates to plows and more particularly to devices for adjusting the angle of the plow bottom in the soil and to devices for permitting the plowshare to yield or swing backwardly in event an obstruction arrests the draft of the plow.

The invention designs to provide means for conveniently adjusting the plow-carrying standard to cause the plow bottom or point to be correctly disposed relatively to the horizontal and according to the soil in which the plow is being used, so that it will have the desired penetration.

' The invention further designs to provide improved means for permitting the plow to swing backwardly when an obstruction is encountered.

The invention still further designs to provide improved means for facilitating the return of the plow carrying standard to its working position relatively tothe beam after it has been shifted by an obstruction.

Lastly, the invention designs to provide an improved connection between the plow carrying standard and the beam.

The invention consists in the several ndvel features hereinafter set forth and more particularly defined by claims at the conclusion hereof.

In the drawings: Figure 1 is a side elevation of a plow embodying the invention. Fig. 2 is a plan. Fig. 3 is a perspective of a portion of the plow standard. Fig. 4 is a vertical longitudinal section. Fig. 5 is a transverse section on line 55 of Fig. 1. Fig. 6 is a perspective of the adjustable break pin holder. Fig. 7 is a section taken on line 7-7 of Fig. 1. Fig. 8 is a section taken on line 88 of Fig. 1.

The plow beam comprises two spaced parallel members 10 which are usually pivotally connected at their front ends to the draftframe to permit the rear end to be raised and lowered to, correspondingly shift the plow sustained thereby. The plow standard or carrying member 11 is pivotally connetted to the rear end of the beam by bolt 12 and a plow bottom 13 of any suitable form is secured to the lower end of the standard. The upper end of the standard is extended forwardly to form an arm or portion lt which fits between the members of the plow beam and the front end of this arm is connected to the beam by an adjustable, breakable connection which permits the standard to swing backwardly sufliciently to cause the plow bottom to ride over an obstruction.

The breakable connection comprises a member 15 which has an arm disposed in a pocket 16 formed in the front end ofthe standard arm 14. The rear end of member 15 is pivoted to arm 14 by a pin 17 which extends transversely through said arm. The front end of member 15 is disposed outside and forwardly of pocket 16 and is provided with a slot 18 and a hole 19 each for receiving a break pin. A toe piece 20 on member 15 serves as an abutment for engaging a bolt 21 which extends through the members of the plow beam and this bolt and abutment serve as a stop device for limiting the pivotal movement of standard 11 in one direction. A break pin 22 extends through holes 23 in the beam members, respectively, and through slot 18 in member 15. Another break pin 24 extends through the upper portion of member 15 and its projecting terminals are adapted to engage the top of the beam and serve to supplement the holding force of break pin 22. The provision of two break pins provides means by which the breaking resistance of either one or two pins may be employed accordingto the character of the soil in which the plow is being used. For example, if one pin provides the desired resistance, one of the pins 22 or 24 may be removed. Ifthe character of the soil is such as to make additional breaking resistance desirable, then both of the pins may be employed. Pin 24 being disposed above the beam is readily accessible for removal, if desired, and, preferably, this pin will be removed if only one pin is necessary.

The invention designs to combine with the breakable connection means for adjusting the plow-carrying standard 11 to vary the angle of the plow bottom and to give it the desired pitch or penetration for properly working in different soils. This. adjustment is effected by a pair of draw bolts 27 and 28 which serve to adjustably lock the arm 1-1 of the standard to the member 15. The head of bolt 27 is held in a countersunk seat 29, formed in the lower edge of member 15, and this bolt extends upwardly through an opening 30 in said member and through slot 31 in the top wall of the pocket 16. The nut on the upper end of bolt 27 serves to draw the arm downwardly with respect to member 15. Bolt 28 has a head which is held in a counter-sunk seat 33 formed in the upper edge of member 15, and extends downwardly through a hole 34 in said member and through a slot 35 in the bottom wall of pocket 16. The nut on the lower end of bolt 28 serves to draw the arm 14 upwardly relatively to member 15. In this manner bolts 27 and 28 serve as an adjustable connection between member 15 andthe standard by which the angle of the plow bottom may be varied. When both bolts are tight, arm 1& of standard 11 and member 15 will be locked together. Slot 16 permits member 15 to move pivotally between pin 17 and stop device 20, 21 during adjustment of bolts 27, 28. Slots 31 and 35 permit member 15 with the bolts therein to be inserted in socket 16 in assembling member 15 and the standard.

In adjusting the plow bottom to raise the plow point, the nut on bolt 27 is loosened and the nut on bolt 28 is drawn up, and, to lower the plow point, bolt 28 is loosened and the nut on bolt 27 is drawn up. XVhen the break pin or pins are broken, the standard 11 and the plow bottom swing backwardly so that the share will ride over the obstruction. In practice, particularly when a large plow and heavy beam are used, it is difiicult for a single operator to swing the standard back into position where the member 15 will receive another break pin. To facilitate this operation, a socket 36 is formed in the standard and is adapted to receive a bar or lever 37 which may be conveniently carried on the plow frame when not in use, and which may be inserted into the socket whenever the standard is to be restored to operative position. By providing this socket with a removable bar or lever, the work of restoring the beam and break pin connection is greatly facilitated.

' The invention thus provides an improved break pin connection between the standard and the beam which permits the breaking resistance to be varied and one which permits the variation of the angle of the plow bottom relatively to the horizontal. The improved connection between the standard and the beam is simple in construction and permits accurate adjustment. The lever socket on the standard for the application of manual force to restore the plow to operative position, and so that a broken break pin may be replaced, makes it easy for the operator to restore the standard to its operative position.

The invention is not to be understood as restricted to the details set forth, since these may be varied within the scope of the appended claims without departing from the spirit and scope of the invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is:

1. In a plow, the combination with a beam, a standard and a plow carried by the standard, of a connection between the stand ard and the beam comprising a break pin and a pin-holding member pivoted to the standard.

2. In a plow, the combination with a beam, a standard and a plow carried by the standard, of a connection between the standard and the beam comprising a break-pin and a pivoted pin-holding member, the standard being provided with a socket into which said member is extended.

3. In a plow, the combination with a beam, a standard and a plow carried by the standard, of a connection between the standard and the beam, comprising a plurality of break-pins, one extending through the beam and another disposed to engage the top of the beam.

4. In a plow, the combination with a beam, a standard and a plow carried by the standard, of a connection between the standard and the beam comprising a plurality of break-pins, and a holding member having holding means for a break-pin extending through the beam and means for holding the other break-pin at the top of the beam.

5. In a plow, the combination with a beam, a standard and a plow carried by the standard, of a connection between the standard and the beam comprising a pin-holding member sustained by and adjustably connected to said standard and a break-pin between said member and the beam.

6. In a plow, the combination with a beam, a standard and a plow carried by the standard, of a connection between the standard and the beam comprising a pin-holding member sustained by and adjustably connected to said standard, a stop device between said mcmber and the beam and a break-pin between said member and the beam.

7 In a plow, the combination with a beam, a standard and a plow carried by the standard, of a connection between the standard and the beam comprising a pin-holding member sustained by and adjustably secured to said standard and a plurality of break-pins between said member and the beam.

8. In a plow, the combination with a beam, a standard and a plow carried by the standard, of a connection between the standard and the beam comprising a break-pin, a member sustained by and movably connected to said standard and through which the break-pin extends, and an adjusting screw between the standard and the member.

9. In a plow, the combination with a beam, a standard and a plow carried by the standard, of a connection between the stand ard and the beam comprising a break-pin,

a member sustained by and movably connected to said standard and through which the break-pin extends, an adjusting screw between the standard and the member, and a stop device between said member and the beam.

10. In a plow, the combination with a beam, a standard and a plow carried by the standard, of a connection between the standard and the beam comprising a break-pin, a member through which the break-pin extends and draw-bolts extending through said member and applied to adjust the standard in opposite directions respectively.

11. In a plow, the combination with a beam, a standard and a plow carried by the standard, of a connection between the standard and the beam comprising a break-pin, a member through which the break-pm extends and draw-bolts extending through, said member and the standard.

12. In a plow, the combination with a beam, a standard and a plow carried bythe standard, of a connection between the stand ard and the beam comprising a break-pin, a member through which said pin extends, the standard having a socket therein into which said member 18 extended, and an adjusting-screw for said member.

18. In a plow, the combination with a beam, a standard and a plow carried by the standard, of a connection between the standard and the beam comprising a break-pin, a member through which said pin extends, the standard having a socket therein into which said member is extended, an adjusting screw between said member and the standard, and a stop device between said member and the beam.

lat. In a plow, the combination with a beam, a standard and a plow carried by the standard, of a connection between the standard and the beam, comprising a break-pin, a member through which said pin extends, and an adjusting screw between said member and the standard, the standard having a slotted terminal for said screw.

15. In a plow, the combination with a beam, a standard and a plow carried by the standard, of a connection between the standard and the beam, comprising a break-pin, a member through which said pin extends pivoted to said standard, the standard having a socket therein into which said member is extended, and an adjusting screw between said member and the standard, the standard having a slotted terminal for said screw.

16. In a plow, the combination with a beam, a standard pivoted to the beam, a plowshare carried by the beam, a breakable connection between the standard and the beam, and means on the standard adapted to removably hold a bar or lever for turning the standard about its pivotal connection to the beam.

17. In a plow, the combination with a beam, a standard pivoted to the beam, a plowshare carried by the beam, a breakable connection between the standard and the beam, and a socket on the standard adapted to removably hold a bar or lever for turning the standard about its pivotal connection to the beam.

WILLIAM W. CAMERON. Witnesses:

H. W. ROBINSON, G. W. DICKINSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

